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Inngest · Concept

Signing key

An Inngest signing key is a secret shared by Inngest and your application environment. It authenticates requests, helps prevent replay attacks, and supports safe key rotation.

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Syntax

INNGEST_SIGNING_KEY=<secret>
INNGEST_SIGNING_KEY_FALLBACK=<other-secret>

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  • INNGEST_DEV
  • isDev
  • Signing Key tab
  • Dev Server
  • branch environments

Source: Inngest Signing Keys | Secure Requests. Checked 2026-11-03.